Atoms, Spectra, Radiations

JETP Letters

, Volume 88, Issue 9, pp 569-573

Generation of terahertz radiation by the axicon focusing of ionizing laser pulses

  • R. A. AkhmedzhanovAffiliated withInstitute of Applied Physics, Russian Academy of Sciences
  • , I. E. IlyakovAffiliated withInstitute of Applied Physics, Russian Academy of Sciences
  • , V. A. MironovAffiliated withInstitute of Applied Physics, Russian Academy of Sciences
  • , E. V. SuvorovAffiliated withInstitute of Applied Physics, Russian Academy of Sciences
  • , D. A. FadeevAffiliated withInstitute of Applied Physics, Russian Academy of Sciences
  • , B. V. ShishkinAffiliated withInstitute of Applied Physics, Russian Academy of Sciences

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Abstract

Experimental results on the generation of terahertz radiation in the gas breakdown by high-power quasi-monochromatic laser pulses focused by an axicon lens are presented. A theoretical model developed for the terahertzradiation generation includes the nonlinear interaction of a femtosecond pulse with an ionized gas and the excitation of transverse oscillations of the plasma column. The results of the theoretical analysis are compared with the experimental data.

PACS numbers

41.60.-m 52.38.-r